The HI-X74(A) is a complete 12-bit, Analog-to-Digital Converter, including a +10V reference clock, three-state outputs and a digital interface for microprocessor control. Successive approximation conversion is performed by two monolithic dice housed in a 28 lead package. The bipolar analog die features the Intersil Dielectric Isolation process, which provides enhanced AC performance and freedom from latch-up.

特性 Features

? Complete 12-Bit A/D Converter with Reference and Clock

? Full 8-Bit, 12-Bit or 16-Bit Microprocessor Bus Interface

? Bus Access Time . . . . . . . . . . . . . . . . . . . . . . . . . . . 150ns

? No Missing Codes Over Temperature

? Minimal Setup Time for Control Signals

? Fast Conversion Times

??? - HI-574A (Max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25μs

??? - HI-674A (Max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15μs

? Low Noise, via Current-Mode Signal Transmission Between Chips

? Byte Enable/Short Cycle (AO Input)

??? - Guaranteed Break-Before-Make Action, Eliminating Bus Contention During Read Operation. Latched by Start Convert Input (To Set the Conversion Length)

? Supply Voltage . . . . . . . . . . . . . . . . . . . . . . ±12V to ±15V

? Pb-Free Available (RoHS Compliant)

Applications

? Military and Industrial Data Acquisition Systems

? Electronic Test and Scientific Instrumentation

? Process Control Systems